Improvement in machine for rounding whalebone for corsets



tutti can.

JAMES A. SEVEY, OF BOSTON, MASSACHUSETTS.

Leners Patent No. 91,370, dated June `15, 1869.

IDEPRQVEMENT I# MACHINE FOR ROUNDING- WHALEYBQNE FOR CORSETS.

The Schedule referred to in these Letters Patent and making parl: of the same.

To allpersons to whom these presents 'may come:

'Be it known, that I, JAMES A. Snvnr, of Boston, in the county of Suffolk, and'State of Massachusetts, -have invented a new and useful Machine for Rounding the Ends of Strips of Whaleboneas Used in Corsets.; and do herebydeclare the same to be fully described in the following'specification, andrepresented in the accompanying drawings, of which- Figure l denotes a front elevation, and

Figure 2, a vertical section of it.

Figure 3 is a side view, and 1 Figure 4, a front view of `one of therounding-chise s.

Figure 5. is a. view showing the arrangement of the cutting-edges of the two chisels.

Each of the said chisels, shown at A A in the drawings, has a gouge-shaped blade, a,` and a furcated shank, b. In' other words, the blade is concave o one side and convex-on the other.

The cutting-edge Vis disposed in or about in the axis of the shank, 'but the blade is disposed at an acute angle with such axis, as shown in iig. 3, in which the dotted line c c denotesthe axis of the shank.

One side of the shank is in the plane of the axis of the blade, as shown in iig. 4, the whole being so that the shank of one cutter, when placed side by side against that of the other, as shown in fig. 2, will bring 'the two cutters intoA positions, ,with respect to each other, as shown in iig. 1, in which case the backs of the blades of thetwo cutters range atan acute angle with each other, their forked Shanks being made to receive the shank of a screw, e, projected from a shoulder,.f, formed on the head'g of a vertical sliderod, B.

A nut, h, screwed on the screw e, andagainst the outermost ashank of the two cutters, ser-ves, with the screw and shoulder, to confine the cutters in place.

The slide-rod B extends down through a bench, O, a foot-guide, D, and a treadle, E, the latter being con nected to\a support-piece, F, by a hinge, h.

The rod B is pivoted to the treadle, which rests on a helical spring, fi, supported by the foot-guide D.

The purpose of the spn'ng is to elevate the treadle, the rod B, and thetwo cutters.

Directly underneath the lcutters is a wheel, G, formed of wood or other suitable material, and provided vvith copper, or a soft metal tire, lc.

This wheel revolves on a spindle, or journal, l, pro` jected from the bench O.

Furthermore, an adjustable serrated rack, H, is fixed to tbe bench, and arranged as represented in iig. 1, it being held to the bench by screws and nuts, one set of which is shown at I, the screw being exhibited as extended throu h a slot, m, made in the rack.

An edge-gauge, projecting from the top of the bench, and arranged vwith respect to the cutters in manner as shown in figs. 1 and 2, serves to determine the position of a strip of whalebone on the wheel, some one of the notches of the rack being employed to determine the length of the piece to be severed from a strip by` the cutters.

By pressing the treadle E downward, the knives A A will be simultaneously.depressed toward the bed wheel G, and as their convexities, or backs are arranged toward each other, the said knives, in passing through a strip of whalebone, when upon the bedwheel, will make two curved cuts through it.

In consequence of the backs of the.,knives being arranged so as tostand toward each other, and make an acute angle with each other, as shown in fig. 1, the piece of whalebone extending between the two cuts will pass into the space between the two knives without clogging therein and finally will be expelled therefrom by other pieces, so introduced successively.

The machine, when at work, thus not only separates a long strip of whalebone into a series of' shorter strips or pieces, but rounds the adjacent ends of two of them at each separation of one of. such shorter pieces from the main piece.

In using the machine, a workman should place on th'e top of the bed-wheel the strip of whalebone to be reduced. Next, he should press one end of the strip against that tooth of the rack which determines the length of the piece to be separated. .After this, he should depress-the treadle so asto caus'e the knives to descend upon and cut through the strip.

In order to prevent the rod B, during its vertical movements, from turning around, I project from it an arm x, into a long staple y, the latter being extended from the bench.

I claim the arrangement of the blades a a, of the two gauge-cutters A A, viz, so as to stand with their convexities in opposite directions, and with their backs atan acute angle with each other, as specified. I also claim the arrangement of the blade of each cutter, with respect to lits furcatedV shank, the blade,

Vunder such arrangement, having its back at an acute angle with the axis of the shank, and one side of the shank disposed'on, or about on a line with the axis of the blade, as set forth.

I also claim the combination of the two knives A A, arranged and provided with operative mechanism, substantially as described, with the bed-wheel G, the gauge K, and the rack H, disposed with and applied to the bench O, as set forth.

J. A. SEVEY.

Witnessesz R. H. EDDY, S. N. PIPER. 

